[{TableOfContents}]

!!!Cassette
* [Boot from Cassette]
* [Atari Datasette XC12 Turbo 6000 Baud Interface]
* [Rambit Turbocharger for Atari Datarecorders]

!!!Generic Information
* [Atari ATASCII Table]
* [Differences Atari 400/800 - 1200XL - 600/800XL|DiffOldOs2XL]
* [Ironman Atari] A compilation of advanced Atari 8-bit programming techniques
* [Unleash the power of Ataris CPU]

!!!Graphics
* [Design Master Testbericht] (German)
* [Multi Player Animator] (German)

!!!Hardware
* [ARGS ISA PC Interface]
* [ARGS RS232 Cartridge] (German)
* [Atari 1027 Printer - OS Timeout Fix]
* [Atari 1030 Modem with ModemLink Telecommunications Program]
* [ATARI 1450XL HOME COMPUTER INTEGRAL DISK DRIVE SPECIFICATION]
* [Atari 822 Thermal Printer]
* [Atari CX70 Light Pen]
* [Atari CX77 Touch Tablet]
* [Atari CX80 Trak-Ball controller]
* [Atari CX85 Numerical Keypad|AtariCX85]
* [Atari Sprachbox|Sprachbox] (German)
* [Atari SX212 Modem]
* [Atari XEP80|XEP80]
* [AtariMax EXEPACKER Files with bundled DOS]
* [Blueprint of ACTION! Cart]
* [Bugfix for the Cassette Handler]
* [Cartridges]
* [Custom Disk Format Routine] (Atari 1050 with Compy Shop Speedy)
* [Floppy 2000]
* [HDI Interface] (aka Floppy 3000)
* [Hercules Graphic Card inside the ARGS PBI-ISA Interface] 
* [Indus GT Field Service Manual]
* [Indus GT Firmware ROM Source] (Disassembly)
* [Indus GT Schematics]
* [Multijoy|How to query the MultiJoy Interface] Interface
* [Trackball]
* [Bank Switching]

!!!Literature
*[Books|http://www.atarimania.com/documents-atari-400-800-xl-xe-books_1_8.html] ; Mega-thanks to Atarimania for hosting
*[Dealer Documents|http://www.atarimania.com/documents-atari-400-800-xl-xe-dealer-documents_8_8.html] ; Mega-thanks to Atarimania for hosting
*[Internal Documents|http://www.atarimania.com/documents-atari-400-800-xl-xe-internal-documents_4_8.html] ; Mega-thanks to Atarimania for hosting
*[Manuals|http://www.atarimania.com/documents-atari-400-800-xl-xe-manuals_2_8.html] ; Mega-thanks to Atarimania for hosting
*[Magazines] ; Magazines which are either in current print or are now out of print
*[Newsletters]
*[Other Documents|http://www.atarimania.com/documents-atari-400-800-xl-xe-other-documents_5_8.html] ; Mega-thanks to Atarimania for hosting
*[Press Kits|http://www.atarimania.com/documents-atari-400-800-xl-xe-press-kits_7_8.html] ; Mega-thanks to Atarimania for hosting
*[Technical Documents|http://www.atarimania.com/documents-atari-400-800-xl-xe-technical-documents_3_8.html] ; Mega-thanks to Atarimania for hosting

!!! [Newsletters]

!!! [Podcasts]

!!! Software

!! [Applications]

*Business
##[Atari Timewise]
##[The Atari Accountant Series]
##[The Bookkeeper]
##[The Home Filing Manager]
##[Atari Home Accounting System]

*Calculation & Graphics
##[Atari Calculator]
##[Atari Graph It I & II|Atari Graph It I & II]
##[Atari Home Finance]
##[Atari Investment Analysis Series]
###[Bond Analysis]
###[Mortgage & Loan Analysis]
###[Stock Analysis]
###[Stock Charting]
##[Atari Personal Financial Management System]
##[Atari Rechner Simulation mit UPN]
##[Atari Silent Butler]
##[Atari Statistics I]
##[Atari The Dow Jones Investment Evaluator]
##[Enhancements to Graph It]
##[Family Budgets]
##[Family Cash Flow]
##[Family Finances]
##[Home Inventory]

*Database
##[Synapse SynFile]

*Diagnostic
##[Atari 400-800 Stand Alone System Test]
##[Super SALT]

*Education
##[Atari Educational System-programming cassette streams]
##[Atari Educational System Lesson Cassettes]
##[Dorsett Educational System Lesson Cassettes]
##[An Invitation to Programming 1 CX4101|https://atariwiki.org/wiki/Wiki.jsp?page=An%20Invitation%20to%20Programming%201%20CX4101]
##[An Invitation to Programming 2 CX4106|https://atariwiki.org/wiki/Wiki.jsp?page=An%20Invitation%20to%20Programming%202%20CX4106]
##[An Invitation to Programming 3 CX4117|https://atariwiki.org/wiki/Wiki.jsp?page=An%20Invitation%20to%20Programming%203%20CX4117]

*Entertainment
##[Atari Biorhythm]
##[Atari Biorhythm cassette-Dual Track with voice, music and data|Atari_Biorhythm-Dual_Track.mp4] ; size: 21.3 MB ; MP4-file taken from Youtube
##[Atari Hangman cassette-Dual Track with voice, music and data|Atari_Hangman-Dual_Track.mp4] ; size: 19.8 MB ; MP4-file taken from Youtube

*Learning
##[Atari Speed Reading]
##[Atari Touch Typing]
##[Conversational FRENCH CX4119]
##[Conversational GERMAN CX4118]
##[Conversational ITALIAN CX4125]
##[Conversational SPANISH CX4120]

*Remote Data Transfer
##[ATARI Bildschirmtext (BTX)]
##[ATARI TELELINK II]
##[ATARI TELELINK I]
##[ATARI The Communicator II]

*Simulation
##[Atari Energy Czar]
##[Atari SCRAM - A Nuclear Power Plant Simulation]
##[Atari Kingdom]
##[Atari Kingdom cassette-Dual Track with voice, music and data|Atari_Kingdom-Dual_Track.mp4] ; size: 14.4 MB ; MP4-file taken from Youtube; main start from minute 1:10

*Spreadsheets
##[BCALC]
##[Calc Magic]
##[VisiCalc|VisiCalc]
##[SpeedCalc]
##[SynCalc|SynCalc]

*Word Processing
##[Atari Schreiber]
##[Atari Word Processor]
##[The Writer's Tool]

!! Atari Learning System Software
* [Atari Learning System Software]

!! Atari Program Exchange (APX) Software
* [Atari Program Exchange (APX) Software]

!!ATARI Conversational Language Series
* [ATARI Conversational Language Series]

!! Country Specific Atari Software

!Dutch Atari Software
* Programmeren
## [Atari Home Computer Audio Training |Atari Home Computer Audio Training]
## [Programmeren... Hoe Doe Je Dat? (Deel 1) - (Cassette: TXN 4101)|Programmeren... Hoe Doe Je Dat (Deel 1)]
## [Programmeren... Hoe Doe Je Dat? (Deel 2) - (Cassette: TXN 4106)|Programmeren... Hoe Doe Je Dat (Deel 2)]
## [Programmeren... Hoe Doe Je Dat? (Deel 3) - (Cassette: TXN 4117)|Programmeren... Hoe Doe Je Dat (Deel 3)]
* Kantoor Thuis
## [Atari Adressenbestand (Cassette: CXN 4104)|Atari Adressenbestand]
## [Atari Grafieken (Cassette: TXN 4109)|Atari Grafieken]
## [Atari Kaartsysteem (Disk: DXN 415)|Atari Kaartsysteem]
## [Atari Statistieken (Cassette: TXN 4103|Atari Statistieken]
## [Huishoud-Boek (Disk: DXN 421)|Huishoud-Boek]
* Algemene Ontwikkeling
## [Atari Energie (Cassette: TXN 4121)|Atari Energie]
## [Bioritme (Cassette: TXN 4107)|Bioritme]
## [Koninkrijk (Cassette: TXN 4102)|Koninkrijk]
* Edukatie
## [Europese Landen en Hoofdsteden (Cassette: TXN 4114)|Europese Landen en Hoofdsteden]
## [Galgje (Cassette: TXN 4108)|Galgje]
* Entertainment
## [Blackjack (Cassette: TXN 4105)|Blackjack]

!French Atari Software

!German Atari Software
* Business
##[Terminkalender]
##[Buchhaltung]
##[Statistik I|Atari Statistics I]
##[Graph It II|Graph It II]
##[Zinsen und Tilgung]
##[Familien Finanzen]
##[Haushalts-Buch]
##[Haushalts-Planung]

* Datenbanken
##[Artikelverwaltung]
##[Bundesligatabelle]
##[Diskettenbibliothek]
##[Karteikartenprogramm]
##[Vereinsverwaltung]
##[Sport-Lexikon]

* Grafik
##[Paint]

* Lernen
##[Tipp Trainer]
##[Städte und Länder]
##[Europäische Städte und Länder]
##[Rechtschreibtrainer]
##[Himmel Schreiber]

* Musik
##[Music Composer]
##[Music I]
##[Music II]

* Programmierhilfen
##[Ataris Programmierhilfen-Diskette Nr.1]
##[Ataris Programmierhilfen-Diskette Nr.2]
##[Programmieren leicht gemacht|https://atariwiki.org/wiki/Wiki.jsp?page=Programmieren%20leicht%20gemacht%20TXG4110]
##[Noch mehr BASIC|https://atariwiki.org/wiki/Wiki.jsp?page=Noch%20mehr%20BASIC%20RXG%2055007]
##[BASIC für Fortgeschrittene]
##[Super Sort]

* Programmiersprachen
##[Assembler/Editor]
##[Macro Assembler]
##[Mikrosoft Basic aka Microsoft Basic II]
##[Pascal]
##[Pilot]
##[Logo]

* Spiele
##[WWF-Club-Spiel]
##[fehler abc|fehler abc]
##[747 Flug-Simulator]
##[Scram]
##[Karriere]
##[Yokyu II - Globetrotter]
##[Atlantis]
##[Nadral]
##[Time Bandit]
##[Cavelord]
##[Würfel - Kniffel]
##[Abenteuer im Weltraum]
##[Schloss des Grauens]

* Spielend lernen mit Atari-Programmen
##[Aufgepasst-Streit der Käfer|Aufgepasst-Streit der Kaefer]
##[Beeil Dich-Verdreht]
##[Bonbonglas-Chaos]
##[Golf-Balkenrechnen]
##[Schluck-Richtungspfeile]
##[Ufos-Blitzschnell]

* Textverarbeitung
##[Atari Schreiber]
##[Programm Text Editor]

* Unterhaltung
##[Biorhythmus|Biorhythmus]
##[Sprachbox|Sprachbox]
##[Super Biorythmus|Super Biorhythmus]

* Utilities
##[Disketten Betriebssystem II Version D2.0S|Atari DOS 2]
##[Disketten Betriebssystem II Version 2.5|Atari DOS 2]
##[Disk Fixer]

!Great Britain Atari Software
* Education
##[European Countries and Capitals - (Cassette: CX 4114)|European Countries and Capitals]

* Games
##[Atari Compilation - (Cassette: TX 9043)|Atari Compilation]
##[Black Lamp - (Cassette: TX 9049)|Black Lamp]
##[Chess - (Cassette: UKC1004)|Chess]
##[Compilation A - (Cassette: TXP7100)|Compilation A]
##[Compilation B - (Cassette: TXP7101)|Compilation B]
##[Compilation C - (Cassette: TXP7000)|Compilation C]
##[Computer Chess & European Countries and Capitals - (Cassette: ACC1001)|Computer Chess & European Countries and Capitals]
##[Cygnus X1 - (Cassette: TX 9051)|Cygnus X1]
##[Eastern Front 1941 - (Cassette: UKC1003)|Eastern Front 1941]
##[Heartache - (Cassette: TX 9046)|Heartache]
##[Nucleus - (Cassette: TX 9050)|Nucleus]
##[Pole Position - (Cassette: TX 8034)|Pole Position]
##[Slingshot - (Cassette: TX 9044)|Slingshot]
##[Speed Hawk - (Cassette: TX 9047)|Speed Hawk]
##[Star Raiders (Cassette)|Star Raiders Cassette]
##[The Lone Raider - (Cassette: EC 2001)|The Lone Raider]
##[The Pay-Off - (Disk: EC 2002)|The Pay-Off]
##[Thunderfox - (Cassette: TX 9041)|Thunderfox]
##[Tiger Attack - (Cassette: TX 9045)|Tiger Attack]
##[Twilight World - (Cassette: TX 9042)|Twilight World]

* Programming
##[An Invitation To Programming - (Cassette: CX 4101)|An Invitation To Programming]

!Italian Atari Software

!!Demo
* [Atari In-Store Demonstration Program|In-Store Demonstration Program]
* [Fandal's demo site|http://a8.fandal.cz/demos.php?name=A&butt_details_x=&from=150]
* [Atarionline demo site|http://atarionline.pl/v01/index.php?ct=demos]

!!Disk Operating Systems (DOS)
!DOS Versions
* [Atari DOS 1]
* [Atari DOS 2]
* [Atari DOS 3]
* [Atari DOS 4]
* [Atari DOS XE]
* [BEWE DOS 1.30 Manual]
* [Bibo-DOS]
* [INDUS CPM 2.2]
* [INDUS GT Synchromesh]
* [MyDOS]
* [OSS OS/A+|OSS OS-A+]
* [OSS A+ 2]
* [OSS A+ 4]
* [OSS A+ Professional 2.12]
* [OSS DOS XL]
* [SmartDOS]
* [Sparta DOS Construction Set Manual]
* [Sparta DOS X Review|SpartaDosXReview]
* [SpartaDOS]
* [SuperDOS]
* [Turbo-DOS]
* [XDOS 2.43]

!DOS Related Information
* [Disk formats / Diskettenformate|Diskettenformate]
* [Disk drive formats / Laufwerksformate|Laufwerksformate]
* [3 Sector read only DOS] \\
* [Ram-Disk under OS-ROM for XL XE] - Article from German "Happy Computer" magazine 
* [CIOV Tutorial]
* [DOS Command Processor] \\
* [Der XIO Befehl fuer Dateioperationen]
* [Der XIO Befehl fuer Grafikoperationen]
* Other [DOS_topics]
* [RTime8 Manual]
* [XIO Command Codes DOS Handler]

!!Games

!! [Voice and Data Cassettes]
* [Atari Biorhythm cassette-Dual Track with voice, music and data|Atari_Biorhythm-Dual_Track.mp4] ; size: 21.3 MB ; MP4-file taken from Youtube
* [Atari Educational System Lesson Cassettes]
* [Atari Hangman cassette-Dual Track with voice, music and data|Atari_Hangman-Dual_Track.mp4] ; size: 19.8 MB ; MP4-file taken from Youtube
* [Atari Kingdom cassette-Dual Track with voice, music and data|Atari_Kingdom-Dual_Track.mp4] ; size: 14.4 MB ; MP4-file taken from Youtube; main start from minute 1:10
* [Atari Speed Reading]
* [Conversational FRENCH CX4119]
* [Conversational GERMAN CX4118]
* [Conversational ITALIAN CX4125]
* [Conversational SPANISH CX4120]
* [Dorsett Educational System Lesson Cassettes]

!!!Source Code
*[Intention of the source code chapter]

!Applications
#[Atari Calculator]
#[Synapse SynCalc|SynCalc]
#[The Writer's Tool]

!Disk Operating Systems (DOS)
#[Atari DOS 2.0S Source Code|http://data.atariwiki.org/DOC/Inside_Atari_DOS_GBXL.pdf] ; Inside Atari DOS-Bill Wilkinson ; size: 39.8 MB
#[Atari 810 DOS Utilities Source Listing (DOS II)|http://ftp.pigwa.net/stuff/collections/Atari%20documents/Technical%20Documents/] ; size: 46 MB
#[Atari DOS II Assembly Source Listing]
#[Atari DOS 2.5 Source Code]
#[MyDOS 4.51 source code|Mydos451.zip]
#[SuperDOS 5.1 source code|SuperDOS]

!Drivers
#[Original CX85 Keyboard Handler]

!Games (in the sequence the authors released the sources to the public)
#[Eastern Front 1941] ; 1981 from Chris Crawford
#[River Raid|http://www.qotile.net/minidig/disassembly/RiverRaid.asm]
#[Donkey Kong|Donkey_Kong_Source_Code.zip] ; size: 418 KB ; source code not quite complete, but very close
#[Fort Apocalypse|https://github.com/heyigor/FortApocalypse] ; 2015 from Steve Hales
#[Star Raiders] ; 2015 from Doug Neubauer & Steve Hales
#[Sea Dragon|Sea_Dragon.zip] ; 2015 from Russ Wetmore
#[Preppie!|Preppie.zip] ; 2015 from Russ Wetmore
#[Preppie! II|Preppie_II.zip] ; 2015 from Russ Wetmore
#[Blue Max] ; 2016 from Bob Polin
#[Pong] ; 1986 from Gary S. Domrow
#[Checkers Display] ; 2017 from Carol Shaw

!Programming Languages
Assembler/Debugger:\\
#[Atari Assembler Editor]
#[Atari Macro Assembler and Program Text Editor (AMAC)|AMAC]
#[OSS EASMD]
#[OSS BUG/65|BUG-65_FROM_3000.txt]
#[OSS MAC/65|https://atariwiki.org/wiki/Wiki.jsp?page=Mac65]
#[OSS MAC XL|https://atariwiki.org/wiki/Wiki.jsp?page=Mac65]
#[OSS MAC XE|https://atariwiki.org/wiki/Wiki.jsp?page=Mac65]
#[OSS DDT|https://atariwiki.org/wiki/Wiki.jsp?page=Mac65]
#[Synapse Assembler]
#[A65 Assembler]
#[Bibo-Assembler|BIBO.asm]

Action!:\\
#[Action!|ACTION]
Basic:\\
#[Atari Basic Source Code 1|https://atariwiki.org/wiki/attach/The%20Atari%20Basic%20Source%20Book/How-atari-basic-works-p3.html] from [The Atari Basic Source Book]
#[Atari Basic Source Code 2|ataribas.asm]
#[Atari Basic Source Code 3|AtariBasic.src]
#[OSS Basic A+|Basic A+]
#[OSS Basic XL|Basic XL]
#[OSS Basic XE|https://atariwiki.org/wiki/Wiki.jsp?page=Basic%20XE]
#[OSS Integer Basic|https://atariwiki.org/wiki/Wiki.jsp?page=OSS%20Integer%20Basic]
#[Microsoft Basic|http://www.pagetable.com/?p=46]
#[ATARI BASIC FOR GCC]
#[Turbo-Basic XL|https://atariwiki.org/wiki/Wiki.jsp?page=TURBO-BASIC%20XL#section-TURBO-BASIC+XL-SourceCode]
#[Altirra Basic|http://www.virtualdub.org/altirra.html]
#[Basic++|http://atariage.com/forums/topic/263403-basic-os-and-a-couple-of-updates/]
C:\\
#[OSS TINY-C+ Version 1.1|https://atariwiki.org/wiki/Wiki.jsp?page=C#section-C-ATRImages]
Forth:\\
Lisp:\\
Logo:\\
Pascal:\\
Pilot:\\
#[Atari Pilot|https://atariwiki.org/wiki/attach/Pilot/Atari_PILOT_source_code.txt]
#[Atari Pilot II or Super Pilot|p2mads.txt]
Quick:\\
Others:\\
#[Atari Educational System Master Cartridge]

!Operating Systems (OS) 
#Atari 400-800 Operating System Source Listing Rev. A - C017893 (1981) ; [pdf-file|https://data.atariwiki.org/DOC/Atari_400-800_OS_A_Source_Listing-C017893_%281981%29.pdf] ; [txt-files|a8-os-rom-2015-08-15.7z]
#[Colleen Floating Point Routines (1979)|Colleen_Floating_Point_Routines.txt]
#[Atari 8-bit Home Computers - Operating System sources|a8-os-rom-2017-05-05.zip] ; size: 2.4 MB ; Thank you so much kr0tki :-)))
#[All Atari OS source codes without OS 255|a8-os-rom-2015-08-15.7z] ; size: 172 KB ; [Source|http://atariage.com/forums/topic/201133-os-source-code-all-revisions/page-2#entry3300525]
#[Atari 400-800 Operating System Source Listing Rev. B (1982)|Atari 800 ROM OS Source Listing] ; [ASM-file|Atari_800_OS_Rev.B.asm]
#[Atari 400-800 Operating System Source Listing of the floating point routines|https://archive.org/details/ColleenFloatingPointRoutines]
# Atari XL Operating System Source Listing ; [Rev. 2 ASM-file|Atari_XL_OS_Rev.2.asm] ; [Rev. 11 ASM-file|Atari_XL_OS_Rev.11.asm]
#[Backus–Naur form|Backus-Naur form]
#[FastChip source code, the rewritten ATARI Floating Point ROM routines|FastChipAsm.zip]

!!! Programming
* [Atari_8-Bit_Error-Codes.pdf] ; Error-Codes for ACTION!, Atari Assembler Cartridge, Atari BASIC & OSS BASIC XL/XE, DOS or other Operating System, MAC/65 and Microsoft BASIC II
* [ASCII-Tabelle]
* [DEZ-HEX-BIN-OKT-PEN (Excel 2016).xlsx] ; Excel sheet for number conversions ; base conversions require Excel 2016
* [OpCodes]
* [CIO Special Command Filter|CIO Special Command Filter]
* [Atari Password|http://www.atarimagazines.com/compute/issue73/atari_password.php]

!!!Rarity 10 and above up to impossible
* [Rarity 10]